{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{8}{c}}
\toprule
                                &\multicolumn{4}{c}{\shortstack{No Imputed Months}}                                     &\multicolumn{4}{c}{\shortstack{Imputed Months}}                                        \\\cmidrule(lr){2-5}\cmidrule(lr){6-9}
                                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         \\
\midrule
ETS Treatment (=1)              &      -0.178\sym{**} &      -0.193\sym{**} &      -0.177\sym{**} &      -0.194\sym{**} &      -0.282\sym{***}&      -0.282\sym{***}&      -0.316\sym{***}&      -0.316\sym{***}\\
                                &     (0.076)         &     (0.076)         &     (0.075)         &     (0.075)         &     (0.074)         &     (0.075)         &     (0.057)         &     (0.057)         \\
 
Year-Month FE                   &                     &         Yes         &                     &         Yes         &                     &         Yes         &                     &         Yes         \\
                                &                     &                     &                     &                     &                     &                     &                     &                     \\
Imputation rule                 &                     &                     &                     &                     &      Rule A         &      Rule A         &      Rule B         &      Rule B         \\
Reweighted                      &                     &                     &         Yes         &         Yes         &                     &                     &                     &                     \\
Mean dep. var (control)         &        6.67         &        6.67         &        6.66         &        6.66         &        6.80         &        6.80         &        6.88         &        6.88         \\
R\textsuperscript{2}            &        0.13         &        0.17         &        0.14         &        0.17         &        0.18         &        0.22         &        0.16         &        0.25         \\
Plants                          &         292         &         292         &         292         &         292         &         292         &         292         &         292         &         292         \\
Observations                    &        3235         &        3235         &        3235         &        3235         &        3796         &        3796         &        3796         &        3796         \\
\bottomrule
\end{tabular}
}
